function getserial() {

	var Build = plus.android.importClass("android.os.Build");
	var Manifest = plus.android.importClass("android.Manifest");
	var MainActivity = plus.android.runtimeMainActivity();
	var SystemProperties = plus.android.importClass("android.os.SystemProperties")
	var serial = ''
	if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) { //9.0+
		var ArrPermissions = [
			Manifest.permission.READ_PHONE_STATE,
		];

		function PermissionCheck(permission) {
			if (Build.VERSION.SDK_INT >= 23) {
				if (MainActivity.checkSelfPermission(permission) == -1) {
					return false;
				}
			}
			return true;
		}

		function PermissionChecks(Arr) {
			var HasPermission = true;
			for (var index in Arr) {
				var permission = Arr[index];
				//如果此处没有权限,则是用户拒绝了
				if (!PermissionCheck(permission)) {
					HasPermission = false;
					break;
				}
			}
			return HasPermission;
		}

		function PermissionRequest(Arr) {
			var REQUEST_CODE_CONTACT = 101;
			if (Build.VERSION.SDK_INT >= 23) {
				MainActivity.requestPermissions(Arr, REQUEST_CODE_CONTACT);
			}
		}
		//如果没有权限，则申请权限
		if (!PermissionChecks(ArrPermissions)) {
			PermissionRequest(ArrPermissions); //此处申请权限，会弹出一个让你授权可获取设备号信息权限框
		} else { //如果拥有权限
			serial = Build.getSerial()
		}
	} else if (Build.VERSION.SDK_INT > Build.VERSION_CODES.N) { //8.0+
		if (Build.SERIAL) {
			serial = Build.SERIAL;
		}
	} else {
		if (SystemProperties.get('ro.serialno')) {
			serial = SystemProperties.get('ro.serialno')
		}
	}

	if (!serial || serial == "unknown") {
		if (SystemProperties.get('ro.serialno')) {
			serial = SystemProperties.get('ro.serialno')
		}
	}

	if (serial) {
		serial = serial.trim()
	}

	uni.setStorageSync('serial', serial);
	return serial
}

export default {
	getserial
}